CVE-2021-21252

Name: CVE-2021-21252
Creator: NVD / NIST
Published: 2021-01-13T19:15:17.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.53%

Last modified Jun 17, 2026

CVE-2021-21252 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The jQuery Validation Plugin provides drop-in validation for your existing forms. It is published as an npm package "jquery-validation". EPSS estimates a 3.53% chance of exploitation in the next 30 days.

Description

The jQuery Validation Plugin provides drop-in validation for your existing forms. It is published as an npm package "jquery-validation". jquery-validation before version 1.19.3 contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service). This is fixed in 1.19.3.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

3.53%

87.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Jqueryvalidation	Jquery Validation	< 1.19.3
Netapp	Snapcenter	All versions

References

https://github.com/jquery-validation/jquery-validation/commit/5d8f29eef363d043a8fec4eb86d42cadb5fa5f7dPatch, Third Party Advisory
https://github.com/jquery-validation/jquery-validation/pull/2371Patch, Third Party Advisory
https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-jxwx-85vp-gvwmThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
https://security.netapp.com/advisory/ntap-20210219-0005/Third Party Advisory
https://www.npmjs.com/package/jquery-validationProduct, Third Party Advisory
https://github.com/jquery-validation/jquery-validation/commit/5d8f29eef363d043a8fec4eb86d42cadb5fa5f7dPatch, Third Party Advisory
https://github.com/jquery-validation/jquery-validation/pull/2371Patch, Third Party Advisory
https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-jxwx-85vp-gvwmThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
https://security.netapp.com/advisory/ntap-20210219-0005/Third Party Advisory
https://www.npmjs.com/package/jquery-validationProduct, Third Party Advisory

Timeline

Published: Jan 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21252?

How severe is CVE-2021-21252?

CVE-2021-21252 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.53% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21252?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21252?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST